That's so sad. Do you think you could encourage lonely boys friendship with sparkling cat through sharing some Dreamies treats? You and sparkling cat could go over and make a fuss of him and they could bond by sharing biscuits?
I didn't realise this sashh, but having spoken to my neighbour she did let the other cats have a sniff of the little cat. Perhaps he knows but he's feeling a bit lost? They were fairly inseparable. Makes it all the more strange that little cat went off very far from home.